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9-sinf Informatika olimpiada

InfoMaster

May 31, 2022

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9-sinf Informatika olimpiada

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1. asin(x) funksiyaning vazifasini toping

A) x ning arkkosinusini hisoblaydi

B) x ning arksinusini hisoblaydi

C) x ning tangensini hisoblaydi

D) x ning arktangensini hisoblaydi

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2. radians(x) funksiyaning vazifasini toping

A) radiandan gradusga o‘tkazadi

B) x ning tangensini hisoblaydi

C) gradusdan radianga o‘tkazadi

D) x ning arkkosinusini hisoblaydi

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3. from math import *
s=sqrt(36/49)-pow(5/7,2)
print(s) dastur natijasini toping

A) 34/49

B) 24/49

C) 17/49

D) 26/49

4 / 21

4. from math import *
a=225 s=sqrt(a)-pow(15 , 2)
print(s) dastur natijasini toping

A) -210

B) 110

C) 200

D) -100

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5. atan(x) funksiyaning vazifasini toping

A) x ning arkkosinusini hisoblaydi

B) x ning tangensini hisoblaydi

C) x ning arktangensini hisoblaydi

D) x ning arksinusini hisoblaydi

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6. Pythonda takrorlanishlar soni nomaʼlum bo‘lganda qo'llaniladigan operator qaysi?

A) while

B) repeat

C) while..do

D) for

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7. Uchburchak katetlaridan biri 36 ga (7 lik s.s), ikkinchisi esa 2A ga (13 lik s.s) teng. Uchburchakning gipotenuzasini 9 lik sanoq sistemasida toping.

A) 48

B) 52

C) 53

D) 50

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8. 7 ta pozitsiyada 0 va 1 orqali kodlash mumkin bo‘lgan eng katta natural son bilan eng kichik natural sonlarning yig‘indisini toping.

A) 64

B) 256

C) 512

D) 128

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9. Brauzerda “a⁷” yozuvini aks ettirish uchun teglar to‘g‘ri berilgan javobni ko‘rsating.

A) a7

B) a7

C) a₇

D) a⁷

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10. MS Excelda I8 yacheychadagi “=F$4-$J11” formulani L4 katakdagi nusxasini ko‘rsating?

A) =$I4-$J11

B) =I$4-$J7

C) =I$8-$J15

D) =I$1-$J7

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11. F(n) funksiyasi qiymatini hisoblash algoritmi quyidagicha berilgan:
n ≤2 da F(n) = 3; n> 2 da F(n) = 5 ∙ F(n−1) –4 ∙ F(n−2), buyerda n – natural son. F(15) ning qiymatini aniqlang.

A) 3

B) 2

C) 5

D) 4

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12. Kompyuterga dasturiy ta’minotni o‘rnatish jarayoni ............... deyiladi.

A) arxivlash

B) defragmentatsiya

C) installyatsiya

D) deinstallyatsiya

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13. А, B, C, D harflarni kodlash uchun ikki razryadli ketma-ket ikkilik sonlari qo‘llandi (mos ravishda, 00 dan 11 gacha). Agar shu usulda DBCA belgilar ketma-ketligi kodlansa va natija o‘n oltilik kodda yozilsa, u holda … hosil bo‘ladi.

A) D8

B) 3120

C) DBCA

D) 138

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14. MS Excel. A1=57, Bl=114, Cl=4, A2=228, B2=285, C2=Avtomexanik berilgan bo‘lsa, =ПСТР(С2;5+СЧЁТЕСЛИ(А1:B2; ”>56”);C1) formula qiymatini toping.

A) anik

B) mex

C) exanik

D) Avtom

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15. MS Excel. A1=–3, B1=7, B2=2 bo‘lsin. Quyidagi formula natijasi –15 bo‘lishi uchun A2 katakka kiritish zarur bo‘lgan qiymatni aniqlang:

=ЕСЛИ(ИЛИ(A1+B2>=A2*B1;A1*B1>0);A1*B2–B1–A2;A1*B1+B2+A2)

A) 4

B) 6

C) 1

D) 2

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16. Bir sanoq sistemasida o‘nlik sanoq sistemasidagi 144 soni 100 kabi yoziladi. Sanoq sistemasi asosini aniqlang.

A) 12

B) 11

C) 13

D) 15

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17. Python dastur lavhasi bajarilgach butun qiymatli a va b o‘zgaruvchilar qiymatini aniqlang:
a= 1511
b= (a % 100)*10+9
a= (10*b+a) // 100
print(a,b)

A) a=27, b=19

B) a=27, b=119

C) a=119, b=27

D) a=37, b=119

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18. Beshlik sanoq sistemasida 0 dan 24 gacha bo‘lgan butun sonlar ketma-ket yozilsa, qatorda nechta son bo‘ladi?

A) 15

B) 25

C) 12

D) 18

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19. Ikkilik yozuvida 6 ta nol qatnashgan eng katta to‘rt xonali 16 lik sonni ko‘rsating?

A) FFC0

B) FF00

C) 81FF

D) FFFF

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20. C˄˥A˅B mantiqiy ifodaga teng kuchli ifodani toping.

A) ˥C˅A˅B

B) ˥(C˅A)˅B

C) ˥(C˅A)˅˥B

D) ˥(˥C˅A)˅B

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21. Signalni analog ko‘rinishdan raqamli ko‘rinishga o‘tkazuvchi qurilma ……{1}……, raqamlik o‘rinishdan analog ko‘rinishga o‘tkazuvchi qurilma ……{2}…. deb ataladi.

A) 1) Chastotali 2) Moduliyator

B) 1) Demoduliyator 2) o'tkazuvchan

C) 1) Demoduliyator 2) Moduliyator

D) To'g'ri javob yo'q